The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
Everything that Kaitlin said I agree with completely, but I would also think muscularly as well. Going off of your pix the pain is in the posterior compartment of your leg. Along with all the mobility work you are doing look into some anterior leg muscular work. Imbalances in the muscularity of the lower leg could cause some of your pain. Just a thought
Hope it helps